Tomato bZIP60 mRNA undergoes splicing in endoplasmic reticulum stress and in response to environmental stresses

Bibliographische Detailangaben
Veröffentlicht in:	Plant physiology and biochemistry : PPB. - 1991. - 160(2021) vom: 15. März, Seite 397-403
1. Verfasser:	Kaur, Navpreet (VerfasserIn)
Weitere Verfasser:	Kaitheri Kandoth, Pramod
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2021
Zugriff auf das übergeordnete Werk:	Plant physiology and biochemistry : PPB
Schlagworte:	Journal Article ER stress Heat IRE1 Tomato Unfolded protein response (UPR) bZIP60 Basic-Leucine Zipper Transcription Factors Plant Proteins RNA, Messenger

Beschreibung
Zusammenfassung:	Copyright © 2021 Elsevier Masson SAS. All rights reserved. Environmental stresses activate endoplasmic reticulum (ER) stress response pathways, collectively known as the unfolded protein response (UPR). IRE1/bZIP60 pathway is the most conserved of all UPR pathways from yeast to plants. Transcription factor bZIP60 is activated by the cytoplasmic splicing of its mRNA by Inositol Requiring Enzyme1 (IRE1) protein. bZIP60 mRNA has a typical stem-loop structure that is required for its splicing by IRE1 ribonuclease. We identified the tomato bZIP60 (SlbZIP60) and secondary structure prediction showed that it has the conserved stem-loop structure. Further, we demonstrate that SlbZIP60 is spliced upon treatment with an ER stress-inducing agent, tunicamycin. Tunicamycin also upregulated the expression of SlbZIP60. Finally, we show that SlbZIP60 undergo physiologically activated splicing in certain tissues of the plant and respond to environmental stresses, heat, and virus infection. This study will help for a deeper understanding of ER stress pathways and how they contribute to the stress tolerance of tomato, one of the important vegetable crops, cultivated under varied environmental conditions
Beschreibung:	Date Completed 02.03.2021 Date Revised 07.12.2022 published: Print-Electronic Citation Status MEDLINE
ISSN:	1873-2690
DOI:	10.1016/j.plaphy.2021.01.033